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Which is correct in the following? In an electric circuit-

Which is correct in the following? In an electric circuit- Correct Answer Ammeter in series and Voltmeter in parallel are connected.

The correct answer is Ammeter in series and Voltmeter in parallel are connected.

  • An ammeter-
    • It is a measuring instrument used to measure the current in a circuit. 
    • Electric currents are measured in amperes (A), and the ammeter is connected in series with the circuit.
  • A Voltmeter -
    • It is an instrument used for measuring the electric potential difference between two points in an electric circuit and It is connected in parallel.
    • It has high resistance so that it takes negligible current from the circuit.
    • In 1819 Hans Orested invented the voltmeter.
  • The resistance of the ammeter is low. So that the entire current of the circuit passes through it.
  • However, the internal resistance of the voltmeter is very low, so the current from the circuit does not disturb the measurement of the voltmeter.
  • The ammeter has higher accuracy than a Voltmeter.
  • The measurement range of the voltmeter can be increased or decreased by changing the value of the resistance while the limit of the ammeter cannot be changed.
  • The working principle of the ammeter and voltmeter is similar to the galvanometer.

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